A porous poly(vinylidene fluoride) gel electrolyte for lithium ion batteries prepared by using salicylic acid as a foaming agent

H. P. Zhang; P. Zhang; G. C. Li; Y. P. Wu; D. L. Sun

doi:10.1016/j.jpowsour.2008.09.100

A porous poly(vinylidene fluoride) gel electrolyte for lithium ion batteries prepared by using salicylic acid as a foaming agent

H. P. Zhang, P. Zhang, G. C. Li, Y. P. Wu, D. L. Sun

Fudan University

科研成果: 期刊稿件 › 文章 › 同行评审

37 引用（Scopus）

摘要

A porous gel polymer electrolyte based on poly(vinylidene fluoride) (PVDF) was for the first time prepared via a foaming technology using salicylic acid as a foaming agent. The pores are evenly distributed with an average diameter of about 400 nm. The results from TG/DTA, XRD and FT-IR show that there are no vesicant residues after the PVDF film was heat-treated at 200 °C to get the porous structure. When the film is gelled with liquid electrolyte, the ion conductivity can be up to 4.8 × 10^-3 S cm^-1 at room temperature and the activation energy for ionic transfer is 10.2 kJ mol^-1. LiCoO₂ cathode also presents good cycling performance. These primary results show great promise for this simple method to prepare porous gel polymer electrolytes for practical application in lithium ion batteries.

源语言	英语
页（从-至）	594-598
页数	5
期刊	Journal of Power Sources
卷	189
期	1
DOI	https://doi.org/10.1016/j.jpowsour.2008.09.100
出版状态	已出版 - 1 4月 2009
已对外发布	是

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title = "A porous poly(vinylidene fluoride) gel electrolyte for lithium ion batteries prepared by using salicylic acid as a foaming agent",

abstract = "A porous gel polymer electrolyte based on poly(vinylidene fluoride) (PVDF) was for the first time prepared via a foaming technology using salicylic acid as a foaming agent. The pores are evenly distributed with an average diameter of about 400 nm. The results from TG/DTA, XRD and FT-IR show that there are no vesicant residues after the PVDF film was heat-treated at 200 °C to get the porous structure. When the film is gelled with liquid electrolyte, the ion conductivity can be up to 4.8 × 10-3 S cm-1 at room temperature and the activation energy for ionic transfer is 10.2 kJ mol-1. LiCoO2 cathode also presents good cycling performance. These primary results show great promise for this simple method to prepare porous gel polymer electrolytes for practical application in lithium ion batteries.",

keywords = "Foaming agent, Lithium ion battery, PVDF, Porous gelled polymer electrolyte, Salicylic acid",

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AU - Zhang, H. P.

AU - Zhang, P.

AU - Li, G. C.

AU - Wu, Y. P.

AU - Sun, D. L.

PY - 2009/4/1

Y1 - 2009/4/1

N2 - A porous gel polymer electrolyte based on poly(vinylidene fluoride) (PVDF) was for the first time prepared via a foaming technology using salicylic acid as a foaming agent. The pores are evenly distributed with an average diameter of about 400 nm. The results from TG/DTA, XRD and FT-IR show that there are no vesicant residues after the PVDF film was heat-treated at 200 °C to get the porous structure. When the film is gelled with liquid electrolyte, the ion conductivity can be up to 4.8 × 10-3 S cm-1 at room temperature and the activation energy for ionic transfer is 10.2 kJ mol-1. LiCoO2 cathode also presents good cycling performance. These primary results show great promise for this simple method to prepare porous gel polymer electrolytes for practical application in lithium ion batteries.

AB - A porous gel polymer electrolyte based on poly(vinylidene fluoride) (PVDF) was for the first time prepared via a foaming technology using salicylic acid as a foaming agent. The pores are evenly distributed with an average diameter of about 400 nm. The results from TG/DTA, XRD and FT-IR show that there are no vesicant residues after the PVDF film was heat-treated at 200 °C to get the porous structure. When the film is gelled with liquid electrolyte, the ion conductivity can be up to 4.8 × 10-3 S cm-1 at room temperature and the activation energy for ionic transfer is 10.2 kJ mol-1. LiCoO2 cathode also presents good cycling performance. These primary results show great promise for this simple method to prepare porous gel polymer electrolytes for practical application in lithium ion batteries.

KW - Foaming agent

KW - Lithium ion battery

KW - PVDF

KW - Porous gelled polymer electrolyte

KW - Salicylic acid

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ER -

A porous poly(vinylidene fluoride) gel electrolyte for lithium ion batteries prepared by using salicylic acid as a foaming agent

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